Home / 18,117.12-25,002.34-10,050.72

Finding the Fourth Proportional to 18,117.12, 25,002.34 and 10,050.72

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Solution

The fourth proportional to 18,117.12, 25,002.34 and 10,050.72 is: 13,870.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.12 : 25,002.34 = 10,050.72 : x
  2. Step 2: Convert to fraction form
    18,117.12/25,002.34 = 10,050.72/x
  3. Step 3: Cross multiply
    18,117.12x = 25,002.34 × 10,050.72
  4. Step 4: Simplify right side
    18,117.12x = 251,291,518.68
  5. Step 5: Solve for x
    x = 251,291,518.68/18,117.12
  6. Step 6: Final answer
    x = 13,870.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.